CVE-2025-26696
published 2025-03-10CVE-2025-26696: Certain crafted MIME email messages that claimed to contain an encrypted OpenPGP message, which instead contained an OpenPGP signed message, were wrongly shown…
PriorityP433high7CVSS 3.1
AVNACHPRNUINSUCHILAL
EPSS
0.33%
25.3th percentile
Certain crafted MIME email messages that claimed to contain an encrypted OpenPGP message, which instead contained an OpenPGP signed message, were wrongly shown as being encrypted. This vulnerability was fixed in Thunderbird 136 and Thunderbird 128.8.
Affected
8 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | thunderbird | < thunderbird 1:128.8.0esr-1~deb12u1 (bookworm) | thunderbird 1:128.8.0esr-1~deb12u1 (bookworm) |
| mozilla | firefox | — | — |
| mozilla | thunderbird | < 128.8.0 | 128.8.0 |
| mozilla | thunderbird | >= 0 < 1:128.8.0esr-1~deb11u1 | 1:128.8.0esr-1~deb11u1 |
| mozilla | thunderbird | >= 0 < 1:128.8.0esr-1~deb12u1 | 1:128.8.0esr-1~deb12u1 |
| mozilla | thunderbird | >= 0 < 1:128.8.0esr-1 | 1:128.8.0esr-1 |
| mozilla | thunderbird | >= 0 < 1:128.8.0esr-1 | 1:128.8.0esr-1 |
| mozilla | thunderbird | >= 129.0 < 136.0 | 136.0 |
CVSS provenance
nvdv3.17.0HIGHCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:L
osv7.0HIGH
vendor_debian7.0HIGH
vendor_redhat7.0HIGH
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Ubuntu
Thunderbird vulnerabilities
vendor_ubuntu·2025-07-22
CVE-2025-4083 Thunderbird vulnerabilities
Title: Thunderbird vulnerabilities
Summary: Several security issues were fixed in Thunderbird.
Multiple security issues were discovered in Thunderbird. If a user were
tricked into opening a specially crafted website in a browsing context, an
attacker could potentially exploit these to cause a denial of service,
obtain sensitive information, bypass security restrictions, cross-site
tracing, or execute arbitrary code.
Instructions: This update uses a new upstream release, which includes additional bug
fixes. After a standard system update you need to restart thunderbird to
make all the necessary changes.
Red Hat
thunderbird: Crafted email message incorrectly shown as being encrypted
vendor_redhat·2025-03-10·CVSS 7.0
CVE-2025-26696 [HIGH] CWE-451 thunderbird: Crafted email message incorrectly shown as being encrypted
thunderbird: Crafted email message incorrectly shown as being encrypted
Certain crafted MIME email messages that claimed to contain an encrypted OpenPGP message, which instead contained an OpenPGP signed message, were wrongly shown as being encrypted. This vulnerability affects Thunderbird < 136 and Thunderbird < 128.8.
A flaw was found in Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Certain crafted MIME email messages that claimed to contain an encrypted OpenPGP message, which instead contained an OpenPGP signed message, were wrongly shown as being encrypted.
Statement: Red Hat Product Security rates the severity of this flaw as determined by the Mozilla Foundation Security Advisory.
Package: thunderbird (Red Hat Enterprise Linux 10) - Affecte
Debian
CVE-2025-26696: thunderbird - Certain crafted MIME email messages that claimed to contain an encrypted OpenPGP...
vendor_debian·2025·CVSS 7.0
CVE-2025-26696 [HIGH] CVE-2025-26696: thunderbird - Certain crafted MIME email messages that claimed to contain an encrypted OpenPGP...
Certain crafted MIME email messages that claimed to contain an encrypted OpenPGP message, which instead contained an OpenPGP signed message, were wrongly shown as being encrypted. This vulnerability affects Thunderbird < 136 and Thunderbird < 128.8.
Scope: local
bookworm: resolved (fixed in 1:128.8.0esr-1~deb12u1)
bullseye: resolved (fixed in 1:128.8.0esr-1~deb11u1)
forky: resolved (fixed in 1:128.8.0esr-1)
sid: resolved (fixed in 1:128.8.0esr-1)
trixie: resolved (fixed in 1:128.8.0esr-1)
Mozilla
Mozilla Foundation Security Advisory 2025-18: CVE-2025-26696
vendor_mozilla·CVSS 7.0
CVE-2025-26696 [HIGH] Mozilla Foundation Security Advisory 2025-18: CVE-2025-26696
Mozilla Foundation Security Advisory 2025-18
CVE: CVE-2025-26696
Product: Thunderbird
Impact: high
Fixed in: Thunderbird 128.8
Mozilla
Mozilla Foundation Security Advisory 2025-17: CVE-2025-26696
vendor_mozilla·CVSS 7.0
CVE-2025-26696 [HIGH] Mozilla Foundation Security Advisory 2025-17: CVE-2025-26696
Mozilla Foundation Security Advisory 2025-17
CVE: CVE-2025-26696
Product: Thunderbird
Impact: high
Fixed in: Thunderbird 136
OSV
CVE-2025-26696: Certain crafted MIME email messages that claimed to contain an encrypted OpenPGP message, which instead contained an OpenPGP signed message, were wron
osv·2025-03-10·CVSS 7.0
CVE-2025-26696 [HIGH] CVE-2025-26696: Certain crafted MIME email messages that claimed to contain an encrypted OpenPGP message, which instead contained an OpenPGP signed message, were wron
Certain crafted MIME email messages that claimed to contain an encrypted OpenPGP message, which instead contained an OpenPGP signed message, were wrongly shown as being encrypted. This vulnerability affects Thunderbird < 136 and Thunderbird < 128.8.
GHSA
GHSA-w56w-w5xr-q52m: Certain crafted MIME email messages that claimed to contain an encrypted OpenPGP message, which instead contained an OpenPGP signed message, were wron
ghsa_unreviewed·2025-03-10
CVE-2025-26696 [HIGH] CWE-290 GHSA-w56w-w5xr-q52m: Certain crafted MIME email messages that claimed to contain an encrypted OpenPGP message, which instead contained an OpenPGP signed message, were wron
Certain crafted MIME email messages that claimed to contain an encrypted OpenPGP message, which instead contained an OpenPGP signed message, were wrongly shown as being encrypted. This vulnerability affects Thunderbird < 136 and Thunderbird < 128.8.
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2025-03-10
Published